The statement that best describes the United States' changing role in the world during the twentieth century was E.<span>It became a military superpower in the world but lacked a strong economy. The reason for the non strong economy was due to the Great Depression, and financial crisis of the 1920's.</span>
This is because both Puerto Rico and the Virgin Islands were unincorporated territories of the United States with the U.S president as head of State. There was no need to patrol Puerto Rico and the Virgin Islands as the U.S blockade was against Cuba, not against the two U.S territories.
